Intermediate Python för utvecklare
Jasmin Ludolf
Senior Data Science Content Developer
# Create a custom function
def average(values):
# Calculate the average
average_value = sum(values) / len(values)
# Round the results
rounded_average = round(average_value, 2)
# Return rounded_average as an output
return rounded_average
values = Argument# Round pi to 2 digits
print(round(3.1415926535, 2))
3.14
Ange argument genom att tilldela värden till keywords
Underlättar tolkning och spårning av argument
# Round pi to 2 digits
print(round(number=3.1415926535
Ange argument genom att tilldela värden till keywords
Underlättar tolkning och spårning av argument
# Round pi to 2 digits
print(round(number=3.1415926535, ndigits=2))
3.14
# Get more information about the help function
print(help(round))
Help on built-in function round in module builtins:
round(number, ndigits=None)
Round a number to a given precision in decimal digits.
The return value is an integer if ndigits is omitted or None. Otherwise,
the return value has the same type as the number. ndigits may be negative.
Help on built-in function round in module builtins:
round(number, ndigits=None)
Round a number to a given precision in decimal digits.
The return value is an integer if ndigits is omitted or None. Otherwise
the return value has the same type as the number. ndigits may be negative.
$$
numberndigitsHelp on built-in function round in module builtins:
round(number, ndigits=None)
Round a number to a given precision in decimal digits.
The return value is an integer if ndigits is omitted or None. Otherwise,
the return value has the same type as the number. ndigits may be negative.
None = inget värde / tomt
Standardargument: ett sätt att ange ett default-värde för ett argument
Vi skriver över None med 2
Vanligt förekommande värde – ange det med ett standardargument
# Create a custom function
def average(values):
average_value = sum(values) / len(values)
rounded_average = round(average_value, 2)
return rounded_average
# Create a custom function def average(values, rounded=False):
# Create a custom function def average(values, rounded=False):# Round average to two decimal places if rounded is True if rounded == True:average_value = sum(values) / len(values) rounded_average = round(average_value, 2) return rounded_average
# Create a custom function def average(values, rounded=False):# Round average to two decimal places if rounded is True if rounded == True: average_value = sum(values) / len(values) rounded_average = round(average_value, 2) return rounded_average# Otherwise, don't round else: average_value = sum(values) / len(values) return average_value
# List of preparation times (minutes)
preparation_times = [19.23, 15.67, 48.57, 23.45, 12.06, 34.56, 45.67]
# Get the average without rounding
print(average(preparation_times, False))
28.4585714
# Get the average without rounding
print(average(preparation_times))
28.4585714
# Get the rounded average
print(average(values=preparation_times, rounded=True))
28.46
Intermediate Python för utvecklare